Detachable type.



O. P. ANDERSON.

DETACHABLE TYPE.

APPLICATION FILED MAR. 30. 191e,

.Jf'l Patented Dec. 5, 1916.

Application filed March 30, 1916. Serial No. 87,779.

UNITED SVTATESEPATENT QFFICE.

c .-oLIViEt listini'ANpERsoNgoFNAsHVILLQtiENNEssEE DETACHABLE TYPE. I

To all 'whomz't may concern.'

Be it known that I,- OLIvER PERRY soN, va citizeny of. the `UnitedStates. residing at Nashville, in the'county of Davidson and State ofTennessee, have invented certain new and useful AImprovements inDetachable Type; and I elo-hereby declare the following to be a full.clear. and exact description of the invention, such will enable othersskilled in the art to which it appertains to make and use the same.

'My invention relates to new. and useful improvements in detachable typeand particularly to that class used in connection with typewriters,adding machines. andthe like, and lmy object is to provide an extra typeadapted to be quickly connected with the type bar of the machine. And afurt-her object is to provide means for holding the. type in positionuntil such time as it is desired to remove or change the same.

Other objects and advantages will be hereinafter set forth and moreparticularly' pointed out in the accoi'npanying specification.

In the accompanying drawings which are made a part of this application,Figure 1 is a detail elevation of a type bar. showing my detachable typeapplied thereto. Fig. 2 is a similar view, showing the detachable typeand securing means in section. Fig. 3 is an end elevation of the typebar and detachable type. Fig. -l is a similar view. showing the mannerof releasing the detachable type. Fig. 5 is an elevation partly insection of a different form of type bar. and Fig. 6 is a similar view ofa still different form of detachable type and fastening means.

Referring to the drawings in which similar` reference numerals designatecorresponding partsthroughout the several views. 1 indicates the typebar which may be. constructed in the usual or any preferred manner and 2indicates the type shank. 3 the usual form of head for the type shankand 4 indicates the type secured to the type head.

In order to quickly change the character of the type I provide a housing5. the lower edge of which is open to receive the head 'said housinghaving type G attached thereto and positioned over theA regular type 1Land coperating with the platen`of the machine the same as the regulartype. In order to hold the casing firmly in engagement withSpecification of Letters Patent.

Patented Deo. 5, 1916.

the head 3, the angle-shape spring 7 is prov1ded, the vertical portionof the spring heilig secured to one end section of the housing by meansof a rivet S. the horizontal portion of the spring T extending below thehead 3 and impinging thereagainst. and to increase4 the locking actionof the spring' with the head. a recess- 9 is formed in the lower face ofthe head 3 with which coperates a projection 10 formed by striking up aportion ofthe horizontal end of the spring. In attaching or removingthis form ot' housing. the horizontal portion of the spring T swunglaterally out of the path of the head so that the housing can be readilvremoved from or introduced over the head portion of the spring. Afterthe housing` is properly positioned over the head 3. the horizontalportion of the spring is forced below the head and the projection 10snapped into engagement with the recess 9.

thereby securely holding the type in engagement with the head. untilsueh time as it is desired.to remove the same.

In Fig. 5 of the drawings. the .housing 5 is shown attached to adifferent form of type bar 1l. in that the type 12 is attached directlyto the type bar. lthe housing being attached to this form of type barthe same as in Figs. l and 2.

In Fig. 6 of the drawings. I have. shown a different form of housing. inthat one end wall thereof is dispensed with. so that the housing 13 canbe slipped endwise over the head ll. and in this instance. thehorizontal portion of the spring l5 passes below the head l-l withoutswinging movement thereof and the projection thereon engage.` the recessin the lower face of the head. In this construction. the usual form oftype shank and head .is removed from the ,type bar and the head l-l,substituted therefor. the ordinaryitype carried by the head beingomitted. IYhen a head of this class is used and the form of type is tobe changed. it requires the introduction of a different housing over thehead each time the type is changed. It will also be understood that whentype bars having the type secured directly thereon are encountered. inwhich ditliculty is experienced in attaching the housing. a special formof type bar is to be substituted therefor and so arranged as to readilyreceive thc special form of detachable type.

Ila ving thus fully described my invention what I claim as new anddesire to secure by LettersPatent of the Ynited States, is

l. The combination with a type bar and the type carrying head thereon.of a housing having type thereon, and an angle shaped spring pivoted tothe housing having a projection thereon adapted to interlock with' thetype carrying head.

The combination with a type 'bar and a head therefor. having a recess,of a housing having type attached thereto, and an angle shaped springhaving a projection adapted to enter said recess and secure the housingto said head.

3. The combination with a ,type bar and a head therefor, having arecess, of a lionsing having type attached thereto, and an angle lshapedspring pivotally secured to the end of the housing and adapted to swing'laterally thereon. said spring having a projection adapted to enter saidrecess and secure the housing to said head.

In testilnon)v whereotl I have signed my name to this specification inthe presence of two subscribing witnesses.

OLIVER PERRY ANDERSON.

vitnessesz l CHARLES L. ConNELu's.

(onNl-uts H. Bumm).

